/Engine/Plugins/Experimental/Web/WebAPI/Source/WebAPIEditor/Public/WebAPIJsonUtilities.h
Optional Enum.
namespace UE { namespace Json { template<typename EnumType> constexpr [TEnableIf](API\Runtime\Core\Templates\TEnableIf)< [TIsEnumClass](API\Runtime\Core\Templates\TIsEnumClass)< EnumType >::Value, bool >::Type UE::Json::TryGet ( const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FJsonValue](API\Runtime\Json\Dom\FJsonValue) > & InJsonValue, [TOptional](API\Runtime\Core\IO\TOptional)< EnumType > & OutValue, const [TMap](API\Runtime\Core\Containers\TMap)< [FString](API\Runtime\Core\Containers\FString), EnumType > & InNameToValue ) } }